/* =========================================
   BLANCO GROSSO — Official Portfolio
   Premium Dark Theme · Single Page
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&display=swap');

/* ── Variables ── */
:root {
    --bg: #050505;
    --bg-elevated: #0c0c0c;
    --surface: #121212;
    --surface-hover: #1a1a1a;
    --border: rgba(255,255,255,0.06);
    --border-light: rgba(255,255,255,0.12);
    --text: #f0f0f0;
    --text-secondary: #999;
    --text-dim: #555;
    --accent: var(--accent-green);
    --accent-glow: rgba(0,255,136,0.06);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 16px;
    --ease: cubic-bezier(0.19, 1, 0.22, 1);
    --fast: 0.2s ease;
    --smooth: 0.4s var(--ease);
    --slow: 0.6s var(--ease);
    --max-w: 1320px;
    --pad: 2.5rem;
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
/* ── Animated Mesh Gradient (Pro Version) ── */
@keyframes meshFloat1 {
    0% { transform: translate(-5%, -5%) scale(1); }
    33% { transform: translate(10%, 5%) scale(1.2); }
    66% { transform: translate(-5% , 15%) scale(0.9); }
    100% { transform: translate(-5%, -5%) scale(1); }
}
@keyframes meshFloat2 {
    0% { transform: translate(5%, 5%) scale(1.1); }
    33% { transform: translate(-10%, -5%) scale(0.8); }
    66% { transform: translate(5% , -15%) scale(1.2); }
    100% { transform: translate(5%, 5%) scale(1.1); }
}

/* Core backgrounds handled by brand-core.css */

@keyframes textGradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Enhancing existing neon/accent elements with a pulse or subtle flow */
.btn-primary, .pc-tag, .project-category, .hero-title .accent {
    background: linear-gradient(-45deg, var(--accent-secondary), var(--accent), var(--accent-orange), var(--accent-violet), var(--accent-secondary));
    background-size: 300% 300%;
    animation: meshGradient 8s ease infinite;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.btn-primary {
    -webkit-text-fill-color: #000;
    background-clip: border-box;
    -webkit-background-clip: border-box;
}

body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; }

/* =========================================
   BUTTONS
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: all var(--smooth);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #000;
}
.btn-primary:hover {
    background: #00e67a;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,255,136,0.2);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}
.btn-ghost:hover {
    border-color: var(--text);
    background: rgba(255,255,255,0.04);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-light);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-lg {
    padding: 1.1rem 2.5rem;
    font-size: 0.9rem;
}

/* =========================================
   1. NAV
   ========================================= */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--pad);
    background: rgba(5,5,5,0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--fast);
}

.nav.scrolled {
    border-bottom-color: var(--border);
}

.nav-brand {
    font-size: 0.85rem;
    font-weight: 900;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--fast);
    letter-spacing: 0.01em;
}
.nav-link:hover { color: var(--text); }

.nav-cta-btn {
    padding: 0.5rem 1.2rem;
    background: var(--accent);
    color: #000;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    transition: all var(--fast);
}
.nav-cta-btn:hover {
    background: #00e67a;
    transform: translateY(-1px);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: all var(--fast);
}

/* =========================================
   2. HERO
   ========================================= */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem var(--pad) 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 50% at 50% 40%, rgba(0,255,136,0.04) 0%, transparent 70%),
        radial-gradient(circle at 80% 70%, rgba(0,255,136,0.02) 0%, transparent 40%);
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.012) 1px, transparent 1px);
    background-size: 100px 100px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1.1rem;
    border: 1px solid rgba(0,255,136,0.25);
    border-radius: 100px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 2rem;
    animation: fadeUp 0.8s var(--ease) 0.1s both;
}

.hero-title {
    margin-bottom: 1.5rem;
    animation: fadeUp 0.8s var(--ease) 0.25s both;
}

.hero-line {
    display: block;
    font-size: clamp(2.5rem, 7vw, 5.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    background: linear-gradient(135deg, #fff 0%, #bbb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-line.accent {
    background: linear-gradient(135deg, var(--accent) 0%, #00cc6e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    animation: fadeUp 0.8s var(--ease) 0.4s both;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeUp 0.8s var(--ease) 0.55s both;
}

.hero-scroll-hint {
    position: absolute;
    bottom: 1.2rem;
    left: 50%;
    translate: -50% 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    animation: fadeUp 0.8s var(--ease) 0.8s both;
}

.hero-scroll-hint span {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    transform-origin: top;
    animation: scrollPulse 2s ease-in-out infinite;
    opacity: 0.4;
}

/* =========================================
   SECTIONS — Common
   ========================================= */
.section {
    padding: 6rem var(--pad);
    max-width: var(--max-w);
    margin: 0 auto;
}

.section-header {
    margin-bottom: 3rem;
}

.section-label {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--accent);
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

/* =========================================
   3. WORKS
   ========================================= */
.works-filter {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.wf-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-secondary);
    padding: 0.4rem 1rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: all var(--fast);
}
.wf-btn:hover {
    color: var(--text);
    border-color: var(--border-light);
}
.wf-btn.active {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.project-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    cursor: pointer;
    aspect-ratio: 4/3;
}

.project-card--large {
    grid-column: span 2;
    aspect-ratio: 16/9;
}

.pc-image {
    position: absolute;
    inset: 0;
}
.pc-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--slow);
}
.project-card:hover .pc-image img {
    transform: scale(1.06);
}

.project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 40%, transparent 65%);
    opacity: 0;
    transition: opacity var(--smooth);
    z-index: 1;
}
.project-card:hover::after { opacity: 1; }

.pc-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    z-index: 2;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--smooth);
}
.project-card:hover .pc-info {
    opacity: 1;
    transform: translateY(0);
}

.pc-tag {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

.pc-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.pc-subtitle {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
    line-height: 1.4;
}

.pc-tools {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}
.pc-tools span {
    font-size: 0.58rem;
    font-weight: 500;
    padding: 0.2rem 0.5rem;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    color: var(--text-secondary);
}

.works-more {
    text-align: center;
    margin-top: 2.5rem;
}

/* =========================================
   4. THE LAB
   ========================================= */
.lab {
    border-top: 1px solid var(--border);
}

.lab-copy {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: 3rem;
    line-height: 1.7;
}
.lab-copy strong {
    color: var(--accent);
    font-weight: 700;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.lab-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--smooth);
}
.lab-card:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-4px);
}

.lab-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.lab-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.lab-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.lab-visual {
    margin-top: 2rem;
}

.lab-placeholder {
    width: 100%;
    aspect-ratio: 21/9;
    background: var(--surface);
    border: 1px dashed var(--border-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* =========================================
   5. SERVICES
   ========================================= */
.services {
    border-top: 1px solid var(--border);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

.service-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    position: relative;
    transition: all var(--smooth);
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
}

.service-card--featured {
    border-color: var(--accent);
    background: linear-gradient(160deg, var(--accent-glow) 0%, var(--surface) 40%);
}
.service-card--featured:hover {
    border-color: var(--accent);
}

.sc-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #000;
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    white-space: nowrap;
}

.sc-number {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
}

.sc-title {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
    line-height: 1.2;
    min-height: 3.2rem; /* Ensure consistent title space */
}

.sc-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.5;
    min-height: 3rem; /* Ensure consistent description space */
}

.sc-list {
    margin-bottom: 2.5rem;
    flex-grow: 1; /* Pushes button to bottom */
}
.sc-list li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.sc-list li::before {
    content: '→';
    color: var(--accent);
    font-size: 0.7rem;
}

.service-card .btn {
    width: 100%;
    justify-content: center;
    text-align: center;
}

/* =========================================
   6. PLAYBOOK
   ========================================= */
.playbook {
    border-top: 1px solid var(--border);
}

.playbook-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.pb-step {
    flex: 1;
    padding: 2rem;
    text-align: center;
}

.pb-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 1rem;
}

.pb-step h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pb-step p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.pb-connector {
    width: 60px;
    height: 2px;
    background: var(--border-light);
    margin-top: 3.5rem;
    flex-shrink: 0;
}

/* =========================================
   7. CONTACT
   ========================================= */
.contact {
    max-width: 100%;
    padding: 8rem var(--pad);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
}

.contact-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    text-align: center;
}

.contact-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.contact-sub {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.contact-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.contact-socials {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.contact-socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--text-secondary);
    transition: all var(--fast);
}
.contact-socials a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 1.5rem var(--pad);
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    color: var(--text-dim);
}

/* =========================================
   ANIMATIONS
   ========================================= */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 0.8; transform: scaleY(1.2); }
}

/* Intersection Observer — reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    :root { --pad: 1.5rem; }

    .works-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .project-card--large {
        grid-column: span 2;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    .service-card {
        padding: 1.25rem 0.85rem;
        display: flex;
        flex-direction: column;
    }
    .sc-title {
        font-size: 0.9rem;
        min-height: 2.8rem;
        margin-bottom: 0.5rem;
    }
    .sc-desc {
        font-size: 0.7rem;
        min-height: 3.5rem;
        margin-bottom: 0.8rem;
        line-height: 1.3;
    }
    .sc-list {
        margin-bottom: 1rem;
        flex-grow: 1;
    }
    .sc-list li {
        font-size: 0.65rem;
        padding: 0.3rem 0;
    }
    .service-card .btn {
        padding: 0.7rem 0.5rem;
        font-size: 0.6rem;
    }
    .lab-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .playbook-steps {
        flex-direction: column;
        align-items: center;
    }
    .pb-connector {
        width: 2px;
        height: 30px;
        margin: 0;
    }
    /* Global scroll protection */
    body, html {
        overflow-x: hidden;
        position: relative;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        padding: 1.5rem var(--pad);
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-toggle { display: flex; }

    .works-grid {
        grid-template-columns: 1fr;
    }
    .project-card--large {
        grid-column: span 1;
        aspect-ratio: 4/3;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    .hero-actions .btn { width: 100%; justify-content: center; }

    .contact-actions {
        flex-direction: column;
        align-items: center;
    }
    .contact-actions .btn { width: 100%; justify-content: center; }

    .service-card { padding: 1.25rem 1rem; }
    .services-grid { gap: 0.5rem; }
    .sc-badge { font-size: 0.5rem; padding: 0.2rem 0.5rem; }
}
/* =========================================
   MULTILINGUAL SUPPORT
   ========================================= */
.lang-en { display: none; }

/* When English is active */
body.lang-en-active .lang-es { display: none; }
body.lang-en-active .lang-en { display: inline; } /* inline for spans */

/* If it's a block element */
body.lang-en-active div.lang-en,
body.lang-en-active section.lang-en,
body.lang-en-active p.lang-en { display: block; }

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.7rem;
    font-weight: 700;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid var(--border-light);
}

.lang-toggle {
    cursor: pointer;
    color: var(--text-dim);
    transition: color var(--fast);
    padding: 2px 4px;
}

.lang-toggle.active {
    color: var(--accent);
}

.lang-toggle:hover:not(.active) {
    color: var(--text);
}